* {
    padding: 0;
    margin: 0;
}

.header {
    height: 300px;
    background-color: blueviolet;
}

.banner {
    height: 500px;
    background-color: pink;
}

.main {
    height: 1000px;
    background-color: aquamarine;
}

.slider-bar {
    height: 100px;
    width: 40px;
    background-color: brown;
    position: absolute;
    right: 0;
    bottom: 0;
}